A Study on Commercialization of Condensing Fluidized-Bed Heat Exchanger for Paper Mill Hood Exhaust Air

제지설비 후드 배공기의 응축형 유동층열교환기 상용화 연구

The water fluidized bed heat exchanger was installed to recover heat from paper mill hood exhaust air containing lot of moisture and also fouling contaminants. The hood exhaust air flow rate was about $110,000m^3/hr$ at $70^{\circ}C$. The commercial scale field test apparatus has been operated for 3 months. As a result of operation, total heat recovered was 2,380,000 kcal/hr and proportion of the latent heat to total heat was 74%. The annual energy saving was estimated as 450 million won.